Everyone worries about the removal or breaking the bead. I fitted a Pirelli Scrorpion MT90 at the back and could break the bead by using 2 long tyre levers against each other.
But seating the tyre was not accomplished at more than 5 bar. So I had to loosen it again and douse with soapy water before inflating again to almost 5 bar before it slipped over the last lip to seat. Doubt if my tyre pump or CO2 cartridges would have done that next to the road. So also lubricate well before seating !

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2014 XT660Z - Barrett pipe, DNA stage1.5, Barkbuster hand guards and handlebars, Pivot pegs, Teknik suspension, Guard-it engine protector combo, B&B rear rack, Trax topbox.